Probability and Cookie Selection

What types of cookies are in Trevor's bag?

• Chocolate chip, sugar, oatmeal raisin, gingerbread

• Chocolate chip, peanut butter, oatmeal raisin, snickerdoodle

• Chocolate chip, peanut butter, sugar, gingerbread

• Chocolate chip, peanut butter, sugar, oatmeal raisin

Why are the events of selecting two peanut butter cookies considered dependent?

• Because the selection of the first cookie affects the probability of the second

• Because the cookies are of different types

• Because the cookies are in the same bag

• Because the selection of the first cookie does not affect the second

How many total cookies are in the bag?

• 30

• 20

• 25

• 35

What is the probability of selecting a peanut butter cookie first?

• 1/5

• 1/6

• 1/4

• 1/3

After selecting one peanut butter cookie, how many are left in the bag?

• 6

• 5

• 4

• 3

What is the probability of selecting a second peanut butter cookie after one has been taken?

• 1/6

• 1/5

• 1/4

• 1/3

How many total cookies are left after one peanut butter cookie is selected?

• 23

• 24

• 26

• 25

What is the simplified probability of selecting two peanut butter cookies consecutively?

• 1/35

• 1/30

• 1/25

• 1/20

What is the probability of selecting a peanut butter cookie first and then another one?

• 1/50

• 1/40

• 1/30

• 1/20

What does the final probability of 1/30 represent?

• The chance of selecting any two cookies

• The chance of selecting two chocolate chip cookies

• The chance of selecting two different types of cookies

• The chance of selecting two peanut butter cookies consecutively